# Lean Work Sampling vs 4i OEEasy

The clearest difference is in-app purchases: 4i OEEasy at none against Lean Work Sampling's 2. 4i OEEasy also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Lean Work Sampling sells 2 one-off in-app purchases. 4i OEEasy asks for nothing beyond the download.

Lean Work Sampling ships an update every 3 months, 4i OEEasy every 2 months. The most recent releases landed on September 22, 2026 and June 21, 2026 respectively.

## The numbers

| Metric | Lean Work Sampling | 4i OEEasy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/4i-oeeasy/id1499544058/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 5 MB | 41 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Herve Kasparian](https://appshunter.io/developer/1232851521) | [4i Platform Inc.](https://appshunter.io/developer/1566439336) |

## What reviewers say

### Lean Work Sampling

[App page](https://appshunter.io/ios/app/lean-work-sampling-lean-tool/id1256690217)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Large Tip | $7.99 | one-time |


### 4i OEEasy

[App page](https://appshunter.io/ios/app/4i-oeeasy/id1499544058)

This app provides manufacturers with real-time OEE reports and online status monitoring for production lines. It helps increase machine productivity by visualizing efficiency rates and analyzing uptime/downtime across all your devices.

**Highlights:** Automatic OEE reports, Online production line monitoring, Uptime and downtime analysis, Cross-platform accessibility, Quick and easy setup, Machine efficiency visualization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lean Work Sampling free?

Lean Work Sampling is free to download, with in-app purchases available.

### Is 4i OEEasy free?

4i OEEasy is free to download, with no in-app purchases.

### Do Lean Work Sampling or 4i OEEasy have ads?

Neither Lean Work Sampling nor 4i OEEasy shows ads.

### Which is updated more often, Lean Work Sampling or 4i OEEasy?

Lean Work Sampling ships an update every 3 months, and 4i OEEasy every 2 months. Most recently, Lean Work Sampling was updated on September 22, 2026 and 4i OEEasy on June 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*